ATI Radeon HD 4850 X2 vs NVIDIA Quadro CX
Graphics Processor
| GPU model | R700 | GT200B |
|---|---|---|
| GPU variant | R700 PRO (215-0669065) | — |
| Architecture | TeraScale | Tesla 2.0 |
| Foundry | TSMC | TSMC |
| Manufacturing process | 55 nm | 55 nm |
| Number of transistors | 956 million | 1,400 million |
| Die size | 256 mm² | 470 mm² |
Graphics Card
| Release date | Nov 7th, 2008 | Nov 11th, 2008 |
|---|---|---|
| Generation | Radeon R700 | Quadro CX |
| Production | End-of-life | End-of-life |
| Launch price | 420 USD | 1,999 USD |
| Interface | PCIe 2.0 x16 | PCIe 2.0 x16 |
| Reviews | 26 in our database | 26 in our database |
| Predecessor | Radeon R600 | — |
| Successor | Evergreen | — |
Clocks
| GPU clock | 625 MHz | 602 MHz |
|---|---|---|
| Memory clock | 995 MHz 1990 Mbps effective | 800 MHz 1600 Mbps effective |
| Shader clock | — | 1204 MHz |
Memory Configuration
| Memory size | 512 MB | 1536 MB |
|---|---|---|
| Memory type | GDDR3 | GDDR3 |
| Memory bus width | 256 bit | 384 bit |
| Bandwidth | 63.68 GB/s | 76.80 GB/s |
Render Configuration
| Shading units | 800 | 192 |
|---|---|---|
| TMUs | 40 | 64 |
| ROPs | 16 | 24 |
| Compute units | 10 | — |
| Cache L1 | 16 KB (per CU) | — |
| Cache L2 | 256 KB | 192 KB |
| SM count | — | 24 |
Performance
| Pixel rate | 10.00 GPixel/s | 14.45 GPixel/s |
|---|---|---|
| Texture rate | 25.00 GTexel/s | 38.53 GTexel/s |
| FP32 (float) performance | 1,000 GFLOPS | 462.3 GFLOPS |
| FP64 (double) performance | 200.0 GFLOPS (1:5) | 57.79 GFLOPS (1:8) |
Dimensions & Outputs
| Slot width | Dual-slot | Dual-slot |
|---|---|---|
| Length | 267 mm 10.5 inches | 267 mm 10.5 inches |
| TDP | 250 W | 150 W |
| Suggested PSU | 600 W | 450 W |
| Outputs | 4x DVI1x S-Video | 1x DVI2x DisplayPort1x S-Video |
| Power connectors | 1x 6-pin + 1x 8-pin | 1x 6-pin |
| Board number | B501 | P607 |
API Support & Features
| DirectX | 10.1 (10_1) | 11.1 (10_0) |
|---|---|---|
| OpenGL | 3.3 | 3.3 |
| OpenCL | 1.1 | 1.1 |
| Vulkan | — | — |
| Shader model | 4.1 | 4.0 |
| CUDA | — | 1.3 |
